Global Patent Index - EP 4227494 A1

EP 4227494 A1 20230816 - SMART SELF-REGULATING HEATER FOR AIRCRAFT GENERATOR FREEZE PROTECTION

Title (en)

SMART SELF-REGULATING HEATER FOR AIRCRAFT GENERATOR FREEZE PROTECTION

Title (de)

INTELLIGENTES SELBSTREGULIERENDES HEIZGERÄT FÜR FLUGZEUGGENERATOR-GEFRIERSCHUTZ

Title (fr)

DISPOSITIF DE CHAUFFAGE INTELLIGENT D'AUTORÉGULATION POUR PROTECTION CONTRE LE GEL D'UN GÉNÉRATEUR D'AÉRONEF

Publication

EP 4227494 A1 20230816 (EN)

Application

EP 23155908 A 20230209

Priority

US 202217669427 A 20220211

Abstract (en)

A ram air turbine (200) assembly includes one or more airfoils (206) and a ram turbine (204) operably connected to the one or more airfoils. The ram air turbine includes: a rotor (302); a stator (304) that includes windings; and a self-regulating heater (330, 700) coupled to the stator. The self-regulating heater configured to vary power that passes through it based on a temperature of the heater.

IPC 8 full level

F01D 15/10 (2006.01); B64D 41/00 (2006.01); F01D 7/00 (2006.01)

CPC (source: EP US)

B64D 13/08 (2013.01 - EP); B64D 15/12 (2013.01 - US); B64D 41/007 (2013.01 - EP US); F01D 15/10 (2013.01 - EP); H02K 15/125 (2013.01 - US); H05B 3/145 (2013.01 - US); F01D 7/00 (2013.01 - EP); Y02E 10/72 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4227494 A1 20230816; US 2023257125 A1 20230817

DOCDB simple family (application)

EP 23155908 A 20230209; US 202217669427 A 20220211